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testqgspointcloud3drendering.cpp
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testqgspointcloud3drendering.cpp
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/***************************************************************************
testqgspointcloud3drendering.cpp
--------------------------------------
Date : March 2022
Copyright : (C) 2022 by Stefanos Natsis
Email : uclaros at gmail dot com
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#include "qgsoffscreen3dengine.h"
#include "qgstest.h"
#include "qgsmultirenderchecker.h"
#include "qgsproject.h"
#include "qgsapplication.h"
#include "qgs3d.h"
#include "qgspointcloudlayer.h"
#include "qgspointcloudextentrenderer.h"
#include "qgspointcloudattributebyramprenderer.h"
#include "qgspointcloudrgbrenderer.h"
#include "qgspointcloudclassifiedrenderer.h"
#include "qgspointcloudlayer3drenderer.h"
#include "qgspointcloud3dsymbol.h"
#include "qgspointlightsettings.h"
#include "qgsstyle.h"
#include "qgs3dutils.h"
#include "qgs3dmapsettings.h"
#include "qgs3dmapscene.h"
#include <QFileInfo>
#include <QDir>
class TestQgsPointCloud3DRendering : public QgsTest
{
Q_OBJECT
public:
TestQgsPointCloud3DRendering() : QgsTest( QStringLiteral( "Point Cloud 3D Rendering Tests" ), QStringLiteral( "3d" ) ) {}
private slots:
void initTestCase();// will be called before the first testfunction is executed.
void cleanupTestCase();// will be called after the last testfunction was executed.
void testSync3DRendererTo2DRenderer();
void testDisableSync3DRendererTo2DRenderer();
void testPointCloudSingleColor();
void testPointCloudAttributeByRamp();
void testPointCloudClassification();
void testPointCloudClassificationOverridePointSizes();
void testPointCloudFilteredClassification();
void testPointCloudFilteredSceneExtent();
private:
std::unique_ptr<QgsProject> mProject;
QgsPointCloudLayer *mLayer;
};
//runs before all tests
void TestQgsPointCloud3DRendering::initTestCase()
{
// init QGIS's paths - true means that all path will be inited from prefix
QgsApplication::init();
QgsApplication::initQgis();
Qgs3D::initialize();
mProject.reset( new QgsProject );
const QString dataDir( TEST_DATA_DIR );
mLayer = new QgsPointCloudLayer( dataDir + "/point_clouds/ept/sunshine-coast-laz/ept.json", "test", "ept" );
QVERIFY( mLayer->isValid() );
mProject->addMapLayer( mLayer );
mProject->setCrs( mLayer->crs() );
// set a default 3D renderer
QgsSingleColorPointCloud3DSymbol *symbol = new QgsSingleColorPointCloud3DSymbol();
symbol->setSingleColor( QColor( 255, 0, 0 ) );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
}
//runs after all tests
void TestQgsPointCloud3DRendering::cleanupTestCase()
{
mProject.reset();
QgsApplication::exitQgis();
}
void TestQgsPointCloud3DRendering::testSync3DRendererTo2DRenderer()
{
// gather different 2D renderers
QgsPointCloudExtentRenderer *extent2DRenderer = new QgsPointCloudExtentRenderer();
QgsPointCloudAttributeByRampRenderer *colorramp2DRenderer = new QgsPointCloudAttributeByRampRenderer();
colorramp2DRenderer->setAttribute( QStringLiteral( "Z" ) );
QgsColorRampShader shader = QgsColorRampShader( 0.98, 1.25 );
shader.setSourceColorRamp( QgsStyle::defaultStyle()->colorRamp( QStringLiteral( "Viridis" ) ) );
shader.classifyColorRamp( 5, -1, QgsRectangle(), nullptr );
colorramp2DRenderer->setColorRampShader( shader );
QgsPointCloudRgbRenderer *rgb2DRenderer = new QgsPointCloudRgbRenderer();
QgsPointCloudClassifiedRenderer *classification2DRenderer = new QgsPointCloudClassifiedRenderer();
classification2DRenderer->setAttribute( QStringLiteral( "Classification" ) );
auto categories = QgsPointCloudClassifiedRenderer::defaultCategories();
// change a couple of categories
categories[2].setRenderState( false );
categories[2].setColor( QColor( 255, 0, 0 ) );
categories[2].setPointSize( 7 );
categories[5].setRenderState( false );
categories[5].setColor( QColor( 0, 255, 0 ) );
categories[5].setPointSize( 10 );
classification2DRenderer->setCategories( categories );
// enable syncing, the 3D renderer should change when the 2D renderer changes
mLayer->setSync3DRendererTo2DRenderer( true );
{
// for the extent 2D renderer we should have a 3D renderer but no symbol
mLayer->setRenderer( extent2DRenderer );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
QVERIFY( !r3D->symbol() );
}
{
mLayer->setRenderer( colorramp2DRenderer );
QgsPointCloudAttributeByRampRenderer *r2D = static_cast<QgsPointCloudAttributeByRampRenderer *>( mLayer->renderer() );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
const QgsColorRampPointCloud3DSymbol *s = dynamic_cast<const QgsColorRampPointCloud3DSymbol *>( r3D->symbol() );
QVERIFY( s );
QVERIFY( s->attribute() == r2D->attribute() );
QVERIFY( s->colorRampShader() == r2D->colorRampShader() );
QVERIFY( s->colorRampShaderMin() == r2D->minimum() );
QVERIFY( s->colorRampShaderMax() == r2D->maximum() );
}
{
mLayer->setRenderer( rgb2DRenderer );
QgsPointCloudRgbRenderer *r2D = static_cast<QgsPointCloudRgbRenderer *>( mLayer->renderer() );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
QgsRgbPointCloud3DSymbol *s = const_cast<QgsRgbPointCloud3DSymbol *>( dynamic_cast<const QgsRgbPointCloud3DSymbol *>( r3D->symbol() ) );
QVERIFY( s );
QVERIFY( s->redAttribute() == r2D->redAttribute() );
QVERIFY( s->blueAttribute() == r2D->blueAttribute() );
QVERIFY( s->greenAttribute() == r2D->greenAttribute() );
QVERIFY( s->redContrastEnhancement() == r2D->redContrastEnhancement() );
QVERIFY( s->greenContrastEnhancement() == r2D->greenContrastEnhancement() );
QVERIFY( s->blueContrastEnhancement() == r2D->blueContrastEnhancement() );
}
{
mLayer->setRenderer( classification2DRenderer );
QgsPointCloudClassifiedRenderer *r2D = static_cast<QgsPointCloudClassifiedRenderer *>( mLayer->renderer() );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
const QgsClassificationPointCloud3DSymbol *s = dynamic_cast<const QgsClassificationPointCloud3DSymbol *>( r3D->symbol() );
QVERIFY( s );
QVERIFY( s->attribute() == r2D->attribute() );
QVERIFY( s->categoriesList() == r2D->categories() );
}
}
void TestQgsPointCloud3DRendering::testDisableSync3DRendererTo2DRenderer()
{
// gather different 2D renderers
QgsPointCloudExtentRenderer *extent2DRenderer = new QgsPointCloudExtentRenderer();
QgsPointCloudAttributeByRampRenderer *colorramp2DRenderer = new QgsPointCloudAttributeByRampRenderer();
colorramp2DRenderer->setAttribute( QStringLiteral( "Z" ) );
QgsColorRampShader shader = QgsColorRampShader( 0.98, 1.25 );
shader.setSourceColorRamp( QgsStyle::defaultStyle()->colorRamp( QStringLiteral( "Viridis" ) ) );
shader.classifyColorRamp( 5, -1, QgsRectangle(), nullptr );
colorramp2DRenderer->setColorRampShader( shader );
QgsPointCloudRgbRenderer *rgb2DRenderer = dynamic_cast<QgsPointCloudRgbRenderer *>( mLayer->renderer()->clone() );
QgsPointCloudClassifiedRenderer *classification2DRenderer = new QgsPointCloudClassifiedRenderer();
classification2DRenderer->setAttribute( QStringLiteral( "Classification" ) );
auto categories = QgsPointCloudClassifiedRenderer::defaultCategories();
// change a couple of categories
categories[2].setRenderState( false );
categories[2].setColor( QColor( 255, 0, 0 ) );
categories[2].setPointSize( 7 );
categories[5].setRenderState( false );
categories[5].setColor( QColor( 0, 255, 0 ) );
categories[5].setPointSize( 10 );
classification2DRenderer->setCategories( categories );
// enable syncing, the 3D renderer should change when the 2D renderer changes
mLayer->setSync3DRendererTo2DRenderer( true );
{
// for the extent 2D renderer we should have a 3D renderer but no symbol
mLayer->setRenderer( extent2DRenderer );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
QVERIFY( !r3D->symbol() );
}
{
mLayer->setRenderer( colorramp2DRenderer );
QgsPointCloudAttributeByRampRenderer *r2D = static_cast<QgsPointCloudAttributeByRampRenderer *>( mLayer->renderer() );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
const QgsColorRampPointCloud3DSymbol *s = dynamic_cast<const QgsColorRampPointCloud3DSymbol *>( r3D->symbol() );
QVERIFY( s );
QVERIFY( s->attribute() == r2D->attribute() );
QVERIFY( s->colorRampShader() == r2D->colorRampShader() );
QVERIFY( s->colorRampShaderMin() == r2D->minimum() );
QVERIFY( s->colorRampShaderMax() == r2D->maximum() );
}
// now disable syncing and check that the 3D renderer symbol does not change
mLayer->setSync3DRendererTo2DRenderer( false );
{
mLayer->setRenderer( colorramp2DRenderer );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
const QgsColorRampPointCloud3DSymbol *s = dynamic_cast<const QgsColorRampPointCloud3DSymbol *>( r3D ->symbol() );
QVERIFY( s );
}
{
mLayer->setRenderer( rgb2DRenderer );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
const QgsColorRampPointCloud3DSymbol *s = dynamic_cast<const QgsColorRampPointCloud3DSymbol *>( r3D ->symbol() );
QVERIFY( s );
}
{
mLayer->setRenderer( classification2DRenderer );
QgsPointCloudLayer3DRenderer *r3D = static_cast<QgsPointCloudLayer3DRenderer *>( mLayer->renderer3D() );
QVERIFY( r3D );
const QgsColorRampPointCloud3DSymbol *s = dynamic_cast<const QgsColorRampPointCloud3DSymbol *>( r3D ->symbol() );
QVERIFY( s );
}
}
void TestQgsPointCloud3DRendering::testPointCloudSingleColor()
{
const QgsRectangle fullExtent = mLayer->extent();
Qgs3DMapSettings *map = new Qgs3DMapSettings;
map->setCrs( mProject->crs() );
map->setOrigin( QgsVector3D( fullExtent.center().x(), fullExtent.center().y(), 0 ) );
map->setLayers( QList<QgsMapLayer *>() << mLayer );
QgsPointLightSettings defaultLight;
defaultLight.setIntensity( 0.5 );
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
map->setLightSources( { defaultLight.clone() } );
QgsOffscreen3DEngine engine;
Qgs3DMapScene *scene = new Qgs3DMapScene( *map, &engine );
engine.setRootEntity( scene );
QgsSingleColorPointCloud3DSymbol *symbol = new QgsSingleColorPointCloud3DSymbol();
symbol->setSingleColor( QColor( 255, 0, 0 ) );
symbol->setPointSize( 10 );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
scene->cameraController()->resetView( 90 );
Qgs3DUtils::captureSceneImage( engine, scene );
// When running the test on Travis, it would initially return empty rendered image.
// Capturing the initial image and throwing it away fixes that. Hopefully we will
// find a better fix in the future.
QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
QGSVERIFYIMAGECHECK( "pointcloud_3d_singlecolor", "pointcloud_3d_singlecolor", img, QString(), 80, QSize( 0, 0 ), 15 );
}
void TestQgsPointCloud3DRendering::testPointCloudAttributeByRamp()
{
const QgsRectangle fullExtent = mLayer->extent();
Qgs3DMapSettings *map = new Qgs3DMapSettings;
map->setCrs( mProject->crs() );
map->setOrigin( QgsVector3D( fullExtent.center().x(), fullExtent.center().y(), 0 ) );
map->setLayers( QList<QgsMapLayer *>() << mLayer );
QgsPointLightSettings defaultLight;
defaultLight.setIntensity( 0.5 );
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
map->setLightSources( { defaultLight.clone() } );
QgsOffscreen3DEngine engine;
Qgs3DMapScene *scene = new Qgs3DMapScene( *map, &engine );
engine.setRootEntity( scene );
QgsColorRampPointCloud3DSymbol *symbol = new QgsColorRampPointCloud3DSymbol();
symbol->setAttribute( QStringLiteral( "Intensity" ) );
QgsColorRampShader shader = QgsColorRampShader( 199, 2086 );
shader.setSourceColorRamp( QgsStyle::defaultStyle()->colorRamp( QStringLiteral( "Viridis" ) ) );
shader.classifyColorRamp( 5, -1, QgsRectangle(), nullptr );
symbol->setColorRampShader( shader );
symbol->setPointSize( 10 );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
scene->cameraController()->resetView( 90 );
Qgs3DUtils::captureSceneImage( engine, scene );
// When running the test on Travis, it would initially return empty rendered image.
// Capturing the initial image and throwing it away fixes that. Hopefully we will
// find a better fix in the future.
QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
QGSVERIFYIMAGECHECK( "pointcloud_3d_colorramp", "pointcloud_3d_colorramp", img, QString(), 80, QSize( 0, 0 ), 15 );
}
void TestQgsPointCloud3DRendering::testPointCloudClassification()
{
const QgsRectangle fullExtent = mLayer->extent();
Qgs3DMapSettings *map = new Qgs3DMapSettings;
map->setCrs( mProject->crs() );
map->setOrigin( QgsVector3D( fullExtent.center().x(), fullExtent.center().y(), 0 ) );
map->setLayers( QList<QgsMapLayer *>() << mLayer );
QgsPointLightSettings defaultLight;
defaultLight.setIntensity( 0.5 );
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
map->setLightSources( { defaultLight.clone() } );
QgsOffscreen3DEngine engine;
Qgs3DMapScene *scene = new Qgs3DMapScene( *map, &engine );
engine.setRootEntity( scene );
QgsClassificationPointCloud3DSymbol *symbol = new QgsClassificationPointCloud3DSymbol();
symbol->setAttribute( QStringLiteral( "Classification" ) );
auto categories = QgsPointCloudClassifiedRenderer::defaultCategories();
symbol->setCategoriesList( categories );
symbol->setPointSize( 10 );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
scene->cameraController()->resetView( 90 );
Qgs3DUtils::captureSceneImage( engine, scene );
// When running the test on Travis, it would initially return empty rendered image.
// Capturing the initial image and throwing it away fixes that. Hopefully we will
// find a better fix in the future.
QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
QGSVERIFYIMAGECHECK( "pointcloud_3d_classification", "pointcloud_3d_classification", img, QString(), 80, QSize( 0, 0 ), 15 );
}
void TestQgsPointCloud3DRendering::testPointCloudClassificationOverridePointSizes()
{
const QgsRectangle fullExtent = mLayer->extent();
Qgs3DMapSettings *map = new Qgs3DMapSettings;
map->setCrs( mProject->crs() );
map->setOrigin( QgsVector3D( fullExtent.center().x(), fullExtent.center().y(), 0 ) );
map->setLayers( QList<QgsMapLayer *>() << mLayer );
QgsPointLightSettings defaultLight;
defaultLight.setIntensity( 0.5 );
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
map->setLightSources( { defaultLight.clone() } );
QgsOffscreen3DEngine engine;
Qgs3DMapScene *scene = new Qgs3DMapScene( *map, &engine );
engine.setRootEntity( scene );
QgsClassificationPointCloud3DSymbol *symbol = new QgsClassificationPointCloud3DSymbol();
symbol->setAttribute( QStringLiteral( "Classification" ) );
auto categories = QgsPointCloudClassifiedRenderer::defaultCategories();
categories[ 2 ].setPointSize( 4 );
categories[ 5 ].setPointSize( 7 );
symbol->setCategoriesList( categories );
symbol->setPointSize( 10 );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
scene->cameraController()->resetView( 90 );
Qgs3DUtils::captureSceneImage( engine, scene );
// When running the test on Travis, it would initially return empty rendered image.
// Capturing the initial image and throwing it away fixes that. Hopefully we will
// find a better fix in the future.
QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
QGSVERIFYIMAGECHECK( "pointcloud_3d_classification_pointsizes", "pointcloud_3d_classification_pointsizes", img, QString(), 40, QSize( 0, 0 ), 15 );
}
void TestQgsPointCloud3DRendering::testPointCloudFilteredClassification()
{
mLayer->setSubsetString( "Classification = 2" );
const QgsRectangle fullExtent = mLayer->extent();
Qgs3DMapSettings *map = new Qgs3DMapSettings;
map->setCrs( mProject->crs() );
map->setOrigin( QgsVector3D( fullExtent.center().x(), fullExtent.center().y(), 0 ) );
map->setLayers( QList<QgsMapLayer *>() << mLayer );
QgsPointLightSettings defaultLight;
defaultLight.setIntensity( 0.5 );
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
map->setLightSources( { defaultLight.clone() } );
QgsOffscreen3DEngine engine;
Qgs3DMapScene *scene = new Qgs3DMapScene( *map, &engine );
engine.setRootEntity( scene );
QgsClassificationPointCloud3DSymbol *symbol = new QgsClassificationPointCloud3DSymbol();
symbol->setAttribute( QStringLiteral( "Classification" ) );
auto categories = QgsPointCloudClassifiedRenderer::defaultCategories();
symbol->setCategoriesList( categories );
symbol->setPointSize( 10 );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
scene->cameraController()->resetView( 90 );
Qgs3DUtils::captureSceneImage( engine, scene );
// When running the test on Travis, it would initially return empty rendered image.
// Capturing the initial image and throwing it away fixes that. Hopefully we will
// find a better fix in the future.
QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
QGSVERIFYIMAGECHECK( "pointcloud_3d_filtered_classification", "pointcloud_3d_filtered_classification", img, QString(), 80, QSize( 0, 0 ), 15 );
mLayer->setSubsetString( "" );
}
void TestQgsPointCloud3DRendering::testPointCloudFilteredSceneExtent()
{
const QgsRectangle fullExtent = mLayer->extent();
const QgsRectangle filteredExtent = QgsRectangle( fullExtent.xMinimum(), fullExtent.yMinimum(),
fullExtent.xMinimum() + fullExtent.width() / 3.0, fullExtent.yMinimum() + fullExtent.height() / 4.0 );
Qgs3DMapSettings *map = new Qgs3DMapSettings;
map->setCrs( mProject->crs() );
map->setOrigin( QgsVector3D( filteredExtent.center().x(), filteredExtent.center().y(), 0 ) );
map->setExtent( filteredExtent );
map->setLayers( QList<QgsMapLayer *>() << mLayer );
QgsPointLightSettings defaultLight;
defaultLight.setIntensity( 0.5 );
defaultLight.setPosition( QgsVector3D( 0, 1000, 0 ) );
map->setLightSources( { defaultLight.clone() } );
QgsOffscreen3DEngine engine;
Qgs3DMapScene *scene = new Qgs3DMapScene( *map, &engine );
engine.setRootEntity( scene );
QgsClassificationPointCloud3DSymbol *symbol = new QgsClassificationPointCloud3DSymbol();
symbol->setAttribute( QStringLiteral( "Classification" ) );
auto categories = QgsPointCloudClassifiedRenderer::defaultCategories();
symbol->setCategoriesList( categories );
symbol->setPointSize( 10 );
QgsPointCloudLayer3DRenderer *renderer = new QgsPointCloudLayer3DRenderer();
renderer->setSymbol( symbol );
mLayer->setRenderer3D( renderer );
scene->cameraController()->resetView( 90 );
Qgs3DUtils::captureSceneImage( engine, scene );
// When running the test on Travis, it would initially return empty rendered image.
// Capturing the initial image and throwing it away fixes that. Hopefully we will
// find a better fix in the future.
QImage img = Qgs3DUtils::captureSceneImage( engine, scene );
QGSVERIFYIMAGECHECK( "pointcloud_3d_filtered_scene_extent", "pointcloud_3d_filtered_scene_extent", img, QString(), 80, QSize( 0, 0 ), 15 );
}
QGSTEST_MAIN( TestQgsPointCloud3DRendering )
#include "testqgspointcloud3drendering.moc"